Product Name:   8-Channel Guest Room Master Controller

Product Model: VN4020

Function Description:

◇The VN4020 master controller provides 8 relay outputs. One device can meet the needs of most economical hotel standard rooms, and it can also be expanded with 2-6 relay modules to meet the control needs of most hotels;

◇1 TCP/IP, 1 CAN-Bus, and 3 485 gateway functions are responsible for communication data exchange and room identification;

All guest rooms can be directly connected to the network via TCP/IP;

◇6-in-1 door display output: Do Not Disturb, Please Wait, Clean, Room Number, Occupied, Doorbell Button;

◇Identify the status of weak/strong current non-networked power-taking switch cards;

◇Electronic doorbell output: Pressing the doorbell button plays a "ding dong, ding dong" doorbell sound.

◇13 channels of 8A surge-protected relay outputs;

◇2 channels of infrared control signal outputs;

◇4 channels of DI dry contact switch quantity inputs;

◇4 channels of DO dry contact control outputs;

◇6 channels of DC12V common positive expansion control signal outputs;

Technical Parameters:

◇DC12V power input port;

◇1 TCP/IP communication RJ45 port;

◇1 CAN_Bus communication port;

◇2 485 communication ports;

◇8 channels of 16A surge-protected relay outputs;

◇2 channels of infrared control signal outputs;

◇4 channels of DI dry contact switch quantity inputs;

◇4 channels of DO dry contact control outputs;

◇6 channels of DC12V common positive expansion control signal outputs: can be expanded to include relay modules, thyristor dimming modules, and LED dimming modules (constant current/constant voltage);

◇6-in-1 door display output;

◇Electronic doorbell output;

◇DC12V weak current power-taking switch input signal port;

◇AC220V strong current power-taking switch input signal port;

Installation Location: DIN standard rail mounting mode, installed in the RCU box;

Dimensions: 107 x88x59mm (length x width x height), 6P DIN slot width.

VN4020 Master Controller Functional Port Description Diagram